I have had this particular intermittent problem since upgrading to CS4....when rendering a workarea....there will be certain parts that will not render

the render bar will turn green for good! and the red not rendered parts....an odd one or two....will not render....I have tried everything other than shaving my head....which I am very close to doing! anyone had this issue....please do not ask me for my computer specs as this has to be a BUG ....I have been using Premiere for years and KNOW the set up ....er stuff...just to mention I have been able to get this to work with rebooting and emptying the media cache and trying all sorts of silly things which slow down my workflow no end....SO?...by the way opacity keyframes do not make any difference

After trying every possible non-sense adjustment......here is what I have found...the piece I have been working on has several .avi pieces which were created in After effects CS4....anytime any of these pieces overlap another piece of video in another video track in Premiere CS4...they will not render so I re-rendered these same .avis to .mov's and all is well in my world .....this a standard SD 720X 480 29.97 project....go figure?

cheers

Steve

here is a link to the finished piece for anyone who is interested....and yes it was rendered with the media encoder in about 11 minutes